Construction of carrier-bar mechanisms for twisting and spinning machines.



No. 851,672. I BATBNTED APR. 3o, 1907.

i P. R. JONES. VGOATST'RUGnIoN 0F CARRIER BAR MBGHANISMS PoR yTWISTINGAND SPINNING MACHINES.

APPLIOATIONHLBD 1133.10. 1906.

m5 Non-ms PETERS co., wAsmNcmN, n. c.

.lio

FRANK R. JONES, OF WORCESTER, MASSACHUSETTS.

CONSTRUCTION OF CARRIER-BAR MECHANISIVIS FOR TWISTING AND SPINNINGMACHINES.

Specification of Letters Patent.

Patented April 30, 1907.

Application filed February lO, 1906. Serial No. 300,362.

To a/ZZ whom t may concern.-

Be it known that I, FRANK R. JONES, a citi- Zen of the United States,residing at Worcester, in the county of lVorcester and State ofMassachusetts, have invented a new and useful Improvement inConstruction of Carrier-Bar Mechanism for Twisting and SpinningMachines, of which the following is a specification, reference beingmade therein to the accompanying drawings.

This invention relates to an improved finger device and carrier for usein conjunction with the tumbler and carrier rolls that support the yarnor sliver in certain kinds of worsted spinning or twisting machines.

The object of my present invention is to afford a practicable, moreel'l'icient and desirable construction for the purpose named, and toprovide a carrier-bar of the character described, with separatelyattached iingers of sheet metal bent and folded in the peculiar formhereinafter more fully set forth.

My invention consists in the features of construction which aredefinitely set out in the claims; an embodiment of said invention beingillustrated in the accompanying' drawings, wherein Figure 1 is anelevation view of a carrierbar and its fingers, showing the inner facethereof. Figs. and 3 are transverse sectional views at line YV IV, 'withthe iinger in side elevation, and showing the same as made with singleand dual lipped bearing guides. Fig. 4 is a perspectiyc view of thefinger. Figs. 5 and 6 are top end views of the finger, showing thedual-lipped and single lipped forms. Fig. 7 is a cross section of the'linger at line X X, on Fig. 4 and Fig. 8 represents the sheet steelblank from which the finger is produced.

In my invention the bar proper, indicated on the drawings by the letterB, is made of a mill rolled rod of light channel-bar shape, or dualflanged eross-section. The bar .is straight and the flanges 3, f or ashort. distance at its respective ends, are flattened or removed toprovide ilat seating surfaces 2; holes 1 `being formed therein tofacilitate at tachment of the carrier-bar to the frame of the spinningmachine whereon it is used. This carrier-bar is provided with aplurality of attached fingers for supporting the journals or gudgeons oftumbler rolls. Three fingers are shown. Either two, or three, fingersare commonly used on a carrier-bar, ac-

cordingly as designed for a six-boss set or an eight-boss set.

The carrier-fingers F, in accordance with my invention, are each madefrom a blank (f Fig. S) of sheetstecl about one sixteenth of an inch,more or less, in thickness; the guides for the tumbler-roll bearingsbeing formed from suitable lateral wings 4 of the blank which are foldedinward, bent and eifsct in the manner illustrated.

The body of the 'linger is formed with a flat seating-portion 5 to 'litthe face of the bar B, above which it is formed with an outwardly archedsemi-cylindrical curved portion 6 of suitable size to pass around andclear the front portion of the carrier-roll C, the position of which isindicated by dotted lines on Figs. l and 3; while the head portion 7 ofthe finger is arranged to stand with its plane approximately parallelwith the plane of the seating portion 5. For the guides or bearing jaws9, opposite lateral portions of sheetmctal or members 4 are foldedbackward at the edge line of the body, as at 10, and returned inward, asat 11, adjacent to the plane of the head, toward the median linethereof, and then bent or o'l'l'set at a right angle 12, formingrearwardly projecting lips 13 which extend out for a distance equal toor slightly greater than the diameter of the tumbler-roll journal; theoll'set lips 13 being parallel with the central line of the linger.

At the rear edge of the lips 13' the metal is bent or oilset at a rightangle 14, respectively in opposite directions, and extends in a il angeer lip l5 parallel with the plane of the head, and terminatingapproximately even with the line of the vlirst bend 10 or edge of thebody the portions 11, 13 and 15 forming rectangular guides for looselysupporting the journals of the tumbler rolls. The positions of the rollsand journals in relationthereto are indicated by dotted lines 1' onFigs. 2, 3, 4 and 5.

In instances in which the carrier-bar and fingers are employed in aforwardly inclined position, as in Fig. 2, the dual lip or portion 15may be omitted, as the tumbler-roll journal in such cases bears on theinwardly returned surface 11; but in instances in which the carrier-barand finger are used in a rearwardly inclined position, as in Fig. 3,then the dual lip or portion l5 is employed, as the tumbler roll journalin such cases bears against the surface of said outer lip.

IOO

In practice three sets of carrier rolls are usually employed on aspinning machine; the carrier bars and fingers for the back and middlesets being forwardly inclined, (as in Fig. 2) and those for the frontset rearwardly inclined; (as in Fig. 3) hence each modification of thefinger is herein illustrated and included.

The finger F is rigidly attached to the flat face of the channel bar Bby a rivet, or rivets, 17 that pass through holes 19 formed in theseating portion 5, which latter is preferably provided with an offsetlip 16 that fits the lower angle of the bar B, thus bringing the fingerinto square relation therewith when the parts are assembled.

The curved portion 6 of the finger is preferably provided with anoutwardly rounded pressed stiffening rib 20 formed therein, as bestshown in Figs. 4 and 7.

By my invention I provide a carrier bar construction and vfinger that islight, strong, durable and efficient; and wherein the guides areaccurate and uniform in respect to their journal-guiding surfaces; alsoa carrier-bar mechanism that can be readily assembled upon the spinningor twisting machine without great care and labor for adjusting andbringing the several fingers into proper alinement with thecarrier-rolls which are on the machine.

I am aware that previous to my invention what are known as carrier-rollsand tumbler-rolls have been employed associated with the drawing rollsin spinning or twisting machinery, and used with differently constructedmeans for supporting such rolls; but I do not claim broadly means,supporting carrier and tumbler rolls, as my invention relates to theimproved fingers and carrier-bar having the construction shown anddefinitely expressed in the claims.

What I claim and desire to secure by Letters Patent, is-

l. A carrier-bar finger having its head provided With guide membersformed from oppositely folded portions of sheet metal disposed parallelwith the plane of the head, and bent or offset rearward near the medianline, in two parallel projecting lips, as set forth.

2. A carrier-bar finger formed of sheet metal integrally comprising theltransverse lipped attaching portion, an outwardly curved body having astiffening rib pressed therein, and a head portion provided withrectangular oppositely folded journal-guide lips bent and upset from theopposite edges of the head, as set forth.

3. A carrier-bar finger composed of a T- shaped blank of steel, havingoppositely disposed wing portions inwardly folded atthe edges of themain portion, and each bent rearward and outward on lines of foldapproXimately parallel with the central plane of the finger, thesurfaces of said wing portions disposed as end-guiding and side-guidingsurfaces for receiving tumbler-roll joure nals, the main body portionlongitudinally vcurved along its central part and having at the oppositeend of said curve a flat attaching portion in a plane approximatelycoinciding in alinement with the plane of the head portion.

4. The sheet metal carrier-,bar finger comprising a flat seatingportion, a semi-cylindrically curved portion and a flat head portionwith lateral inwardly folded members returned. adjacent to the plane ofthe head, bent or offset parallel with the median line of the head, andprojected rearward with a right angular offset, the respective endportions the two members being disposed in opposite relations in amanner to include spaces and surfaces for guiding or carryingtumblerroll journals.

5. A carrier-bar for the purpose specified, comprising a bar of millrolled metal of channeled or flanged cross-section, having suit ableattaching seats at its ends and a plurality of sheet metalcarrier-fingers rigidly se cured in f'latwise relation upon said bar,each of said fingers consisting integrally of an attachingfseat portion,an outwardly curved central portion, and a head portion havingjournal-guiding lips thereon disposed in relation to the plane of thehead, substantially as set forth.

6. A carrier-bar for spinning machines, consisting of a longitudinallylianged wrought bar having its end portions flat and perforated, and aplurality of individually attached outwardly curved sheet-metal fingers,each finger including in its form an attaching seat and engaging-lipfitting the angle and face of the bar, an arched central portion and ahead portion comprising laterally opposite, inwardly folded members bentrearward at either side of the median line of the finger and forming twoparallel end-bearing flanges, and means rigidly securing said fingers tothe bar, substantially as set forth.

wWitness my hand this 7th day of February, 1906.

FRANK R. JONES.

Witnesses:

CHAs. H. BURLEIGH. ELLA P. BLENUs.

IOO

IIO

